Revision 3 | Granolyser / Granolyser HL operating instructions
7 Operation
The GRANOLYSER is only allowed to be operated by personnel who have been qualified
and trained in its operation.
NOTICE
The owner is responsible for ensuring the accuracy of results. This can be done by the
following measures, for example:
• Regular control samples for monitoring the instrument
• Regular comparisons with a recognized reference laboratory
As well as this, the owner must ensure that all the information in these operating
instructions regarding carrying out measurements is complied with.
Pfeuffer GmbH will not accept liability for damage caused by incorrect measurement
results.
In order to reduce energy consumption and heat generation, the screen is darkened
after approx. 20 minutes. Operation is reactivated by simply tapping the screen.
7.1 Preparation of a sample
NOTICE
Select a representative sample for the measurement.
For information and notes about sampling, refer to the standard:
DIN EN ISO 24333: 2010 Cereals and cereal products – Sampling
Optimum, repeatable results can be achieved with cleaned samples.
Extraneous components must be removed prior to the measurement!
20 % to 80 %, non-condensing
Measurements below the limit of +10 °C are possible, but represent a risk of inaccurate
measurement values!
Allow the product samples to acclimatize to room temperature!
This applies in particular to:
• Frozen samples, because the condition of aggregation of water is significant for the
measurement.
• Hot samples taken during the drying process, for example.
In products with an extreme surface moisture level
homogenization.
Measurement results from samples that are already releasing a fermentation odor can
display greater errors than freshly harvested samples.
To achieve an accurate measurement result, it is necessary to have a sample quantity
of 600 ml.
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